OPERATION METHOD OF WELL EQUIPPED WITH BOTTOM-HOLE PUMP Russian patent published in 2010 - IPC E21B43/00 E21B47/00 

FIELD: oil and gas industry.

SUBSTANCE: operation method of the well involves lowering of tubing string to the well, at the lower end of which there installed is bottom-hole device equipped with a pulley which is enveloped with a rope; strings of rods, bottom-hole pump, and their operation. Bottom-hole device is lowered together with tubing by means of rope the free end of which is fixed on the well head. In order to carry out measurements, to the first end of rope there attached is a cable end with cable, and it is lowered to mechanical and electric connection to bottom-hole device. Measurements of liquid parametres in the well and transfer of data via the cable to surface is performed when bottom-hole device is lowered to the well below tubing. After measurements are completed, rope and cable is wound up and bottom-hole device is raised till it is borne against lower end of tubing string, and connection of cable end to bottom-hole device is detached, and cable is wound up till there is next lowering of bottom-hole device.

EFFECT: safety and reduction of labour input of lowering of independent bottom-hole device to the well.

2 dwg